FAA AMT Handbooks — The Official Free Study Guides for A&P Mechanics
The FAA publishes a series of Aviation Mechanic Technician (AMT) Handbooks that are the primary reference materials for the three A&P knowledge tests, the oral and practical exam, and ongoing professional reference once you are certificated. All volumes are public-domain documents available as free PDF downloads from the FAA website. Understanding which handbook covers which test and how the handbooks map to the Mechanic ACS is the foundation of an efficient study plan.
Why the AMT Handbooks Are the Right Study Source
The FAA Mechanic Airman Certification Standards (ACS) explicitly cites the AMT handbooks as the primary reference material for each ACS knowledge code. Questions on the FAA knowledge tests are drawn from the material in these handbooks — so studying the handbooks is not just useful background reading; it is studying from the same source the test questions are written from. Because they are public-domain government publications, you are legally free to download, print, copy, annotate, and reproduce them without licensing concerns. This is a significant advantage over EASA Part-66 training, which relies on copyrighted third-party manuals. Every question in AMTprep's adaptive practice engine includes a handbook chapter reference so you can trace any gap directly to the source material.
FAA-H-8083-30B: Aviation Maintenance Technician Handbook — General
FAA-H-8083-30B (Aviation Maintenance Technician Handbook — General) covers the subject matter for the General knowledge test and the General section of the A&P oral and practical exam. Topics include: FAA regulations (14 CFR Parts 43, 65, 91, 119, 145), ground operations and servicing, aircraft cleaning and corrosion control, basic aerodynamics and aircraft theory of flight, mathematics and physics for mechanics, fluid lines and fittings, nondestructive testing (NDT) methods (dye-penetrant, magnetic particle, eddy current, ultrasonic, radiographic), aircraft drawings and blueprints, weight and balance principles and calculations, aircraft hardware (fasteners, rivets, cables, turnbuckles), and electrical fundamentals. The General handbook is the logical starting point because this material underpins both the Airframe and Powerplant subject areas.
FAA-H-8083-31B: Aviation Maintenance Technician Handbook — Airframe
FAA-H-8083-31B (Aviation Maintenance Technician Handbook — Airframe) covers the Airframe knowledge test and Airframe oral and practical exam subject areas. (The current B edition consolidates what earlier editions split across two volumes into a single combined handbook.) It covers aircraft structures — wood, fabric, and hybrid construction; sheet metal structures; welding; composites; aircraft painting and finishing; and structural repair principles — and aircraft systems: landing gear systems, hydraulic and pneumatic systems, fuel systems, environmental control systems (cabin pressurization, heating, cooling), ice and rain protection, aircraft instruments, and communication and navigation systems. Because the Airframe test has 100 questions, covering the handbook thoroughly is important. Reference the ACS to identify which topic areas carry the most questions.
FAA-H-8083-32B: Aviation Maintenance Technician Handbook — Powerplant
FAA-H-8083-32B (Aviation Maintenance Technician Handbook — Powerplant) covers the Powerplant knowledge test and Powerplant oral and practical exam. (Like the Airframe handbook, the current B edition consolidates the earlier two-volume set into a single combined handbook.) It covers reciprocating engines — theory of operation, engine construction, overhaul procedures, engine fuel and fuel metering systems (carburetors and fuel injection), engine ignition and electrical systems, engine starting systems, and induction, exhaust, and cooling systems — and turbine engines: gas turbine theory, turbine engine construction and inspection, turbine fuel systems, turbine engine starting and ignition, engine instrument systems, and propeller systems (including propeller installation, inspection, and maintenance). The Powerplant test also has 100 questions.
How the Handbooks Map to the ACS
The ACS lists a specific reference source for each knowledge code. For example, an ACS code covering sheet-metal repair will cite FAA-H-8083-31B and the relevant chapter. When you see an ACS code on a failed practice question or an AKTR, look up that code in the ACS document, find the cited reference, and go directly to the relevant handbook chapter. This cross-reference approach is the most efficient study method: instead of reading entire handbooks cover-to-cover, you read the chapters that correspond to your weak ACS areas. AMTprep displays the ACS code and handbook reference for every practice question, making this lookup automatic.
Downloading and Using the Free PDFs
All three AMT handbooks are freely available from the FAA website (links in the primary sources section below). The PDFs are large, detailed documents — each handbook runs several hundred pages. Recommended approach: download all three at the start of your study period; use the ACS as your guide to prioritize chapters; annotate your PDFs with study notes; and use AMTprep practice questions to test your retention chapter by chapter. Some candidates also purchase printed copies (FAA publishes print versions through the Government Publishing Office) if they prefer physical books. The handbook content is periodically revised — always confirm you have the current edition before the knowledge test.
Frequently asked questions
- Are the AMT handbooks the only study materials I need?
- The AMT handbooks are the primary source, but not the only one. FAA regulations (14 CFR Parts 43, 65, 91) are also tested and are listed as reference materials in the ACS. Manufacturer's maintenance manuals and industry standards are referenced in some ACS areas. For the oral and practical exam, hands-on experience and familiarity with real technical publications matters as much as handbook knowledge.
- Do the handbooks change? How do I know if I have the current edition?
- The FAA periodically updates the handbooks. Check the publication date on the title page of each PDF against the dates listed on the FAA's handbook download page. The ACS is also updated occasionally; always confirm your ACS version matches the current test. AMTprep tracks handbook and ACS editions — consult our resource pages for current links.
- Are the handbooks used during the oral and practical exam?
- Most DMEs allow candidates to reference technical publications during practical tasks — this reflects real-world practice, where mechanics always work from the manual. However, the DME expects you to know the regulatory framework and key maintenance standards from memory. Practical tasks should be performed confidently, consulting the reference as needed, not as a substitute for knowing the material.
- Is the General handbook required reading even if I only want a Powerplant rating?
- Yes. All candidates must pass the General knowledge test regardless of which rating(s) they are seeking. The General handbook (FAA-H-8083-30) covers the subject matter for that test. You should study all three handbooks in the areas relevant to your chosen rating(s) plus the entire General handbook.
Primary sources
Related guides
- FAA Mechanic ACS Explained — What Is the Airman Certification Standards?
- FAA A&P Written Tests Explained — General, Airframe & Powerplant
- FAA General Knowledge Test Prep (A&P) — Free Sample Questions
- Airframe Written Test Questions (FAA A&P) — Free Samples
- Powerplant Written Test Questions (FAA A&P) — Free Samples
Start your A&P exam prep today
Adaptive practice, ACS-code remediation, and oral prep — everything you need to pass.